Home / 305,487.04-458,142-127,989.04

Finding the Fourth Proportional to 305,487.04, 458,142 and 127,989.04

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Solution

The fourth proportional to 305,487.04, 458,142 and 127,989.04 is: 191,946.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,487.04 : 458,142 = 127,989.04 : x
  2. Step 2: Convert to fraction form
    305,487.04/458,142 = 127,989.04/x
  3. Step 3: Cross multiply
    305,487.04x = 458,142 × 127,989.04
  4. Step 4: Simplify right side
    305,487.04x = 58,637,154,763.68
  5. Step 5: Solve for x
    x = 58,637,154,763.68/305,487.04
  6. Step 6: Final answer
    x = 191,946.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.